Freestone · Limestone · Northwest Territories

South Nahanni River

South Nahanni River — Looking across the South Nahanni River from the Virginia Falls dock

The South Nahanni is one of the planet's legendary wilderness rivers — deep canyons, the great Virginia Falls, and a place where the canoe expedition is the real adventure.

Prime · Arctic Char
Bright Streamer (orange/pink) · 2-6
Primelive now
About as good as it gets
River high but settled. Coloured water — fish bigger and deeper, confident takes down the seams.
75% confidence
What moved it
  • Level3.19 m
  • Water temp8.6°C
  • ClarityClear
Today's fly
BS
Bright Streamer (orange/pink)2-6
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
3.19 m
Water temp8.6°C
ClarityClear
Weather6°C
WindSE 5 km/h
Pressure1006 hPa
Rain · recent2.0 mm
Rain · ahead1.3 mm

Live readings — water temperature is an estimate where the gauge does not record it.

Water temperature for Arctic Char
Ideal
9°C est.ideal 412°C
0°14°28°
How to fish it · for Arctic Char
When
July to mid-September on park expeditions.
Where
The South Nahanni is one of the planet's legendary wilderness rivers — deep canyons, the great Virginia Falls, and a place where the canoe expedition is the…
Why this works
Excellent — water temperature is right today, though insect activity could be better.
Hatch timeline · todayQuiet day

Hatch predictions

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Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

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Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
1
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2
Mahogany DunHatch
2
2
American March BrownHatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Arctic Char fly box
BS
Bright Streamer (orange/pink)Top
2-6 · Bright Streamer
High-confidence seasonal pick
Permits & access
Permit required — see local rules.
  • National Park fishing permit required; grayling/char C&R
  • Verify current Parks Canada / NWT rules.
What's coming
Plan ahead
5-day outlook
Gallery · 2
  1. South Nahanni River — Looking across the South Nahanni River from the Virginia Falls dock
    Looking across the South Nahanni River from the Virginia Falls dock
  2. Terrain map of the venue
    Terrain map
About this water

The South Nahanni is one of the planet's legendary wilderness rivers — deep canyons, the great Virginia Falls, and a place where the canoe expedition is the real adventure. The silty mainstem isn't fly water, but the clear tributaries and side waters hold excellent Arctic grayling with bull trout and lake trout about. Fish the clear feeders on dries between the canyons of a National Park journey.

Under the surface

The South Nahanni, in its namesake national park reserve, is one of the great wilderness rivers of the world — a powerful, partly silty mountain river of deep canyons and the thundering Virginia Falls, holding Arctic grayling, bull trout / Dolly Varden and lake trout in clearer tributaries and side waters. Fishing is secondary to the legendary canoe expedition, but the grayling in the clear feeders are excellent.

Wading: Powerful silty river, canyons, remote national park wilderness

  • Limestone
  • Confined
  • Large river
  • Canyon
Conservation note

Arctic grayling, bull trout / Dolly Varden (char) and lake trout — catch-and-release. Within Nahanni National Park Reserve; a Parks Canada fishing permit and Indigenous co-management rules apply. Clean-Drain-Dry.

The full read · show the working · for Arctic Char · confidence 75%
How the 84 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow90 × 22%19.8
Clarity85 × 18%15.3
Feeding Time80 × 13%10.4
Pressure75 × 7%5.3
Insect activity45 × 12%5.4
Conditions total= 84
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Directions
Seasons & zones
  • Trout 1 July15 September
Related guides
Booking & contacts